如何获得传奇

Question

我正在尝试用Shapefiles绘制一些数据，但是我需要一个传奇来区分哪种shapefile在哪种颜色上。我为每个shapefile分配了颜色，但棘手的部分是创建一个传奇。

我的代码如下：

data = gpd.GeoDataFrame(data, geometry=gpd.points_from_xy(data.INTPTLON, data.INTPTLAT))

fig, ax = plt.subplots(figsize=(10, 10))
DC_BLK.plot(ax=ax,edgecolor = "black" ,facecolor = "None")

DC_BG.plot(ax=ax, edgecolor = "lightblue",facecolor = "None")

DC_CT.plot(ax=ax,edgecolor = "purple",facecolor = "None")

data.plot(ax=ax , marker = '.')

ax.set_title('Washington DC - 7x pop')

plt.show()

数据。情节 - 使用经度＆amp;绘制三个点；纬度在地图上。 dc_blk-包含直流块的shapefile DC_BG-包含直流块组的shapefile DC_CT-包含DC人口普查区的ShapeFile

Answer 1

我发现了。我想发布我所做的事情，以防有人遇到类似的问题。
这是我所做的：

import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
data = gpd.GeoDataFrame(data, geometry=gpd.points_from_xy(data.INTPTLON, data.INTPTLAT))
fig, ax = plt.subplots(figsize=(10, 10))
DC_BLK_PLT = DC_BLK.plot(ax=ax,edgecolor = "grey", facecolor = "None")
DC_BG_PLT = DC_BG.plot(ax=ax, edgecolor = "lightblue",facecolor = "None")
DC_CT_PLT = DC_CT.plot(ax=ax,edgecolor = "black",facecolor = "None")
data.plot(ax=ax , marker = '.')
grey  = mpatches.Patch(color = 'grey', label = 'Block')
Lblue = mpatches.Patch(color = 'Lightblue', label = 'Block Group')
Black = mpatches.Patch(color= 'black', label = 'Census Tract')
ax.set_title('Washington DC - 7x pop')
plt.legend(handles = [grey,Lblue,Black])
plt.show()

希望这会有所帮助